public void mineBlock(Block b) {
for (int nonce = Integer.MIN_VALUE; nonce <= Integer.MAX_VALUE; ++nonce) {
b.setNonce(nonce);
b.computeHash();
BigInteger hashAsInteger = new Hash(b.getHash()).toBigInteger();
if (hashAsInteger.compareTo(Difficulty.getTarget(b.getDifficultyTarget())) <= 0) {
break;
}
}
}
